Question

Which of the following shows the intersection of the sets? {7, 8, 9, 10} {9, 10, 11, 12}

Answer 1

{9, 10}

Explanation:

The intersection of sets are the numbers that appear in both sets. In this case the only numbers that appear in both sets are 9 and 10.

Answer 2

{ 9,10}

Explanation:

The intersection of the sets is what the two sets have in common

{7, 8, 9, 10} ∩{9, 10, 11, 12}

{ 9,10}